I mentioned this many times before but my TL has its times where it doesnt have any low end power, for example driving on the highway seems very sluggish and it accelerates poorly. Im not talking about pushing the car, when i step on it... there is no problem. More so where i cruise around and such... the car just feels heavy all the time, basically it has no power in the lower rpms at all.

Ive changed many sensors and the only ones i didnt change are the Oxygen sensor. I dont have any check engine light but my gas milage is not that great... altough on long highway trips i avarage around 28mpg. Could something like that be related to oxygen sensors..

I wanna give this one another try before i make up my mind and trade it in....

 

Is your cars engine and exhaust stock? How many miles do you have? Check your spark plugs?

 

That's because it doesn't have any low end torque, 258 HP and 230 torque 6200/5000, and torque doesn't hit 200 until over 4000 RPMs.